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11.1随机事件的概率教材细解1.随机事件的基本概念(1)三种事件的概念①必然事件:在一定的条件下必然要发生的事件.②不可能事件:在一定的条件下不可能发生的事件.
11.1 Probability of Random Events Detailed Teaching Materials 1. Basic Concepts of Random Events (1) Concepts of Three Events 1 Inevitable Events: Events that must occur under certain conditions. 2 Impossible Events: Impossible under certain conditions What happened.